13: Snow (1851), "On the mode of propagation of cholera, the paper he partially delivered at the Epidemiological Society." Download: PDF

13: Word comparison of Mode of Communication of Cholera, "Pathology and mode of communication of cholera," and "Mode of propagation of cholera"—another example of his reasoning by repetition and accretion. Download: PDF

14: Snow's investigations of impure water and cholera in South London—Overview. Download: PDF

14–III (a): Snow's "grand experiment"—Genesis of an idea as described in MCC2 (January 1855). Download: PDF

24–II: Transcription of cholera deaths from the Weekly Returns of 2 and 9 September 1854 that Edmund Cooper and his team investigated and used in preparing the "Schedule" and Frontage Plan requested by the Metropolitan Commission of Sewers. Download: PDF

24–III: The chairman of the Metropolitan Commission of Sewers states that the Cooper report exonerates the sewers from public suspicion that they caused the Broad Street cholera outbreak. Download: PDF

26–II: Snow's MCC2 account of his Broad Street outbreak investigations from September to November 1854. Download: PDF

26–IV: An edited and annotated transcription of "Dr. Snow"s Report," presented to the Cholera Inquiry Committee for St. James, Westminster parish on 12 December 1854, but not published until the summer of 1855. Download: PDF

28: Report by the three special investigators hired by the General Board of Health to undertake house-to-house inquiries in the Broad Street cholera field. Download: PDF

30–I: St. James, Westminster parish records of this local authority's response to the cholera epidemics of 1853–54. Download: PDF

30–II: Henry Whitehead's report on the outbreak in a single street shows his evolution as an epidemiological investigator, his changing views of Snow's cholera theory, and his identification of a potential primary case that had eluded Snow. Download: PDF

30–III: Jehoshaphat York finds a "fatal communication" between the sewer drain coming from 40 Broad Street and the well lining under the Broad Street pump. Download: PDF

30–IV: The Cholera Inquiry Committee's general report on the cholera outbreak in St. James parish. Download: PDF

31–I, II, III, IV: Reports from the medical council to Benjamin Hall, President of the 2nd General Board of Health. Download: PDF

Guidelines for constructing a research prospectus and a research essay [a companion to 16:II, historiographical unpacking]. Download: PDF